Appaeatus for heating air by steam



No. 28,578. PATENTED JUNE 5, 1860.

J. HOLLINGSWORTH. APPARATUS FOR HEATING AIR FOR WARMING BUILDINGS. 6:0

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JAMES I-IOLLINGSYVORTH, OF CHICAGO, ILLINOIS.

APPARATUS FOR HEATING AIR BY STEAM.

Specification of Letters Patent No. 28,578, dated June 5, 1860.

To all whom "it may concern:

Be it known that I, JAMES HoLLIxcs- WORTH, of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Apparatus for Heating Air by Steam for Warming Buildings or Apartments; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figures 1 and 2 are vertical sections of a boiler and heater constructed, arranged and applied according to my invention.

Similar letters of reference indicate corresponding parts in both figures.

To enable others skilled in the art to make and use our invention we will proceed to describe its construction and operation.

A represents the air warming chamber or casing in which the boiler and radiator or heater are placed said chamber being built of brickwork or of other material of square or other form in its horizontal section, and with its roof or top sloping upward toward the duct a, through which the warmed air passes off to the building.

B is the body of the boiler, arranged at the bottom and in the center of the chamber A, such boiler being of any convenient or suitable form.

J is the fire box, and K a portion of the horizontal flue which extends through the boiler to connect with the chimney E, and which is exposed to the air passing through the chamber A.

C C D D, is the steam chest or heater consisting of two upright flat boxes C, C, united by horizontal tubes D, D. One of the boxes C, C, is connected with the upper part of the body of the boiler by two pipes F, and the other with the lower part by two pipes G, to keep up the supply of, and a free circulation of steam through the steam chest or heater, and for the return of the water of condensation to the body of the boiler. The level of the water is intended to be kept a little below the top plate I) of the body of the boiler, that the steam chest or heater may be always full of steam when the apparatus is in operation.

The steam chest or heater is intended to be arranged a considerable distance above the body of the boiler, that ample room may be left for the circulation of air under the bottom of the steam chest or heater between it and the body of the boiler.

The air to be warmed, is admitted to the air chamber A, near the bottom through openings 0, a, in the sides and rear thereof. Above these openings and between the levels of the top of the body of the boiler, and the bottom of the steam chest or heater, the deflectors H, H, are attached to the sides ,of the air chamber, such deflectors which extend from end to end of the said chamber, or nearly so, being made of brickwork or of iron, and having an upward inclination from the sides toward the middle of the chamber. Another deflector I, of similar character, is arranged in a similar manner along the back of the air chamber, and another J along the front. These deflectors prevent the cold air passing directly upward, as soon as it enters the chamber, and compel it to pass under the steam chest or heater, and over the body of the boiler, and over the exposed portion K, of the flue, thus bringing it in contact with all parts of the heating surfaces. From the bottom of the steam chest or heater, the air circulates between the tubes D, D, and over the inner and outer sides of the boxes C, C, which present in the aggregate a very extensive steam heated surface, and being thus warmed to a desirable degree, is delivered by the duct a, to the place or places required. To prevent the air which after passing under the steam chest or heater passes between the outer sides of the boxes C, C, and the walls of the chamber A, from ascending too quickly to derive the full benefit of the heating surface, inclined partitions may be arranged between the said boxes and walls as shown at (Z, (Z, in the drawing to cause to pass across the outer surfaces of the boxes.

The tubes D, D, may be cylindrical, or may have any form of transverse section better calculated to give a greater heating surface. The construction of the steam chest or heater, may be varied almost indefinitely. Any number of pipes e, 6, may

be arranged as shown in the drawing to convey steam from the steam chest or heater to radiators at a distance if desired.

What I claim as my invention and desire to secure by Letters Patent, is

l. The arrangement of the furnace J, boiler B, steam boxes and pipes O, D, and air boX A, as and for the purpose herein shown and described.

2. I also claim the arrangement of the 10 deflectors H, I, J between the steam boxes and the boiler, as and for the purpose herein shown and described.

JAMES HOLLINGSWORTH.

Witnesses:

W. G. ToWLE, D. FORD. 

